添加 README.md

README.md

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+好的！下面给你**标准答案**和**最终可运行程序**。
+
+# PART 1：选择题答案
+
+1. a
+2. c
+3. d
+4. b
+5. d
+6. d
+
+---
+
+# PART 2：编程
+
+## 1) 游乐园身高/年龄判定（最终程序）
+
+```python
+# Amusement park eligibility checker
+age = int(input("Enter your age: "))
+
+if age >= 9:
+    height = float(input("Enter your height in cm: "))
+    if height > 130:
+        print("You may go on this ride!")
+    else:
+        print("You are too short for this ride.")
+else:
+    print("You are too young for this ride.")
+```
+
+## 2) 找错并修正（4处错误已修）
+
+原代码中的问题：
+
+* `=>` 应为 `>=`（语法错误）
+* `else if` 应为 `elif`（语法错误）
+* 将整数与字符串比较：`userScore > "600"` 应与整数比较（类型错误）
+* 打印时建议规范金额格式（逻辑/输出规范改进）
+
+修正后的完整代码：
+
+```python
+IDEAL_CREDIT_SCORE = 720
+
+userScore = int(input("Please enter your credit score: "))
+housePrice = float(input("Please enter the price of the house: "))
+
+if userScore >= IDEAL_CREDIT_SCORE:
+    downPayment = 0.10 * housePrice
+elif userScore < IDEAL_CREDIT_SCORE and userScore > 600:
+    downPayment = 0.20 * housePrice
+else:
+    downPayment = 0.30 * housePrice
+
+print("Your down payment is: ${:.2f}".format(downPayment))
+```
+
+需要的话我也可以给你一些快速测试用例，帮你验证输出是否符合预期。